Our compiler identification source encodes `INFO:compiler[...]` and
similar strings in compiled objects or binaries that we then extract to
get information about the compiler. With most compilers the strings are
encoded in the binaries as a simple byte sequence. However, some
compilers use other encodings. For example, the MS CSharp compiler uses
UTF-16LE and a TI compiler uses UTF-16BE. Try each encoding.
Fixes: #19459
When we run `csc.exe /help` we look for "Version" in the output.
Explicitly ask for the output in English.
Reported-by: guttally@users.noreply.github.com
